Home›Maneuver Tracker›Close Approaches›UMBRA-14 ⟷ LEMUR-2 CARROLLEMO
HighProximity
United StatesUMBRA-14NORAD 101130 · launched Oct 2026Payload
3.11kmPredicted miss distance
GermanyLEMUR-2 CARROLLEMONORAD 68489 · launched Mar 2026Payload
Final forecastFinal forecast, made minutes before the pass.
After the passBest estimate, from the orbit data published nearest its time: 3.07 km at 6 Nov 13:11 UTC.
Closest approach6 Nov 202613:11 UTC
Relative speed6.17 km/sat the closest approach
Altitude596 kmlow Earth orbit
Last confirmed6 Nov13:10 UTC · final forecast
Track UMBRA-14Track LEMUR-2 CARROLLEMOAll approaches
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US UMBRA-14 and DE LEMUR-2 CARROLLEMO were predicted to reach a closest approach of 3.11 km at 2026-11-06 13:11 UTC, at a relative speed of 6.17 km/s. Final forecast, made minutes before the pass. Best estimate after the pass, from the orbit data published nearest its time: 3.07 km at 6 Nov 13:11 UTC. Miss distance and time of closest approach are computed by propagating the latest published orbital elements for both objects, and each pass is re-checked every 20 minutes as new element sets are published. See the Satellite Maneuver Tracker for the live picture and space situational awareness for context.

Why it mattersBoth objects are catalogued as payloads. Screening continues as new element sets arrive; operators act on their own conjunction data.

The Two Objects

Dossiers from the satellite directory
UMBRA-14Payload
NORAD 101130
CountryUS
Launched2026-10-20
OrbitLEO · 585 × 594 km
COSPAR2026-237V
Maneuver capableUnknown
Profile →Globe →
LEMUR-2 CARROLLEMOPayload
NORAD 68489
CountryGER
Launched2026-03-30
OrbitLEO · 590 × 592 km
COSPAR2026-067CB
Maneuver capableUnknown
Profile →Globe →

Where This Happens

Altitude context
DEBRIS BELT 700–1000 KM2006001,0001,5002,000 kmTHIS PASS · 596 KMISS 420Starlink 550

At 596 km this pass sits in low Earth orbit. Objects here stay up for decades: there is too little atmospheric drag to clean the band naturally. Why crowded bands matter →

History Between This Pair

1 predicted pass under 10 km
Pair history · UMBRA-14 ⟷ LEMUR-2 CARROLLEMO
2026-11-06 13:113.11 km Final forecast · after: 3.07 km6.17 km/s596 kmShown above

Repeat encounters are common for objects in near-intersecting orbital planes. Each pass is re-screened as fresh element sets arrive; "Final forecast" means the screening still predicted it within 45 minutes of its time, "Not re-confirmed" means later screening stopped finding it.

Forecast Record

Every figure published for the pass shown above, newest first. Nothing is overwritten: a withdrawn forecast keeps its figure, with the newer check beside it, and the best estimate after the pass is a row of its own.
Computed · figure · predicted time · orbit data · by
10 Nov 08:51 UTC3.07 km Best estimate6 Nov 13:11 UTC6 Nov 18:44 UTCBest estimate
6 Nov 10:00 UTC3.11 km Forecast6 Nov 13:11 UTC5 Nov 20:12 UTCRe-check
6 Nov 09:41 UTC6.54 km Forecast6 Nov 13:11 UTC5 Nov 20:12 UTCScreen

These Objects Elsewhere

Other screened approaches · 7 days
2.35 km11-06 12:03 UTC
UMBRA-14OBJECT H
2.84 km11-05 20:31 UTC
UMBRA-14COSMOS 2251 DEB
2.87 km11-05 06:03 UTC
HAWK-15CUMBRA-14

How These Numbers Are Computed

Miss distance and TCA come from propagating the latest published orbital elements for both objects and searching for the minimum separation over the screening window. Element sets carry kilometre-scale uncertainty, so figures here describe a close pass, not a collision prediction; a change in either object's published elements re-computes the pass automatically. What is a conjunction? → How conjunction assessment works →